CN104596921A - Method and tool for measuring polyimide film peeling force of sintered electromagnetic wire - Google Patents
Method and tool for measuring polyimide film peeling force of sintered electromagnetic wire Download PDFInfo
- Publication number
- CN104596921A CN104596921A CN201410806199.7A CN201410806199A CN104596921A CN 104596921 A CN104596921 A CN 104596921A CN 201410806199 A CN201410806199 A CN 201410806199A CN 104596921 A CN104596921 A CN 104596921A
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- Prior art keywords
- electromagnetic wire
- kapton
- frock
- data
- polyimide film
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 229920001721 polyimide Polymers 0.000 title claims abstract description 15
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims description 84
- 238000000418 atomic force spectrum Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 239000004020 conductor Substances 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- 239000005041 Mylar™ Substances 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a method and a tool for measuring the stripping force of a polyimide film of a sintered electromagnetic wire, wherein the method comprises the following steps: peeling a polyimide film of a predetermined first length on the electromagnetic wire along a length direction of the electromagnetic wire; fixing one end of the peeled polyimide film; controlling the electromagnetic wire to move to enable the polyimide film to be peeled from the electromagnetic wire, controlling the moving speed and direction of the electromagnetic wire to enable the surface of the electromagnetic wire and the tension direction of the polyimide film to form an angle of 90 degrees all the time and enable the polyimide film to be in a state of being continuously stressed and peeled, and recording tension data of the polyimide film measured in the peeling process. According to the invention, the surface of the electromagnetic wire and the tension direction of the polyimide film always form an angle of 90 degrees by controlling the moving speed of the electromagnetic wire, so that more accurate polyimide film peeling force data can be obtained.
Description
Technical field
The present invention relates to electrical field, particularly relating to a kind of method and frock of the Kapton peeling force for measuring sintered electromagnetic wire.
Background technology
Sintered electromagnetic wire be the insulation course of copper conductor surface through high-sintering process fusing, secure bond at the electromagnetic wire of copper conductor surface, the insulation of this sintered electromagnetic wire is continuous sealing, its sealing, voltage-resistent characteristic and water-proofing performance are better, are particularly suitable in the applications higher to environmental requirement.The process for making of sintered electromagnetic wire is by the Kapton being coated with F46 (cementing agent) being bonded on copper conductor under certain high temperature, require will there be certain cohesive force between its Kapton and copper conductor, this cohesive force is the peeling force of sintered electromagnetic wire Kapton.The height (sintering process and stability) of sintered electromagnetic wire quality can come indirectly effectively to judge by the peeling force index of Kapton and copper conductor.For sintered electromagnetic wire, cohesive force is better or bonding is more firm, and illustrate that it more has good sintering quality, its sealing, weather resistance and electrical specification can be better accordingly.At present, in the peeling force index evaluation process of Kapton and copper conductor, usual method touches directly evaluation by visual inspection or with hand.
State in the process of peeling force index evaluation of Kapton and copper conductor in realization, inventor finds that in prior art, at least there are the following problems: existing method cannot obtain Kapton peel-force data accurately.
Summary of the invention
The invention provides a kind of method and frock of the Kapton peeling force for measuring sintered electromagnetic wire, Kapton peel-force data more accurately can be obtained.
For achieving the above object, the present invention adopts following technical scheme:
For measuring a method for the Kapton peeling force of sintered electromagnetic wire, comprising: the length direction along electromagnetic wire peels off the Kapton of the first predetermined length on electromagnetic wire; One end of the Kapton of stripping is fixed; Control electromagnetic wire moves, Kapton is peeled off from electromagnetic wire, in the process peeled off, control the speed of electromagnetic wire movement and direction and make the direction of pull of electromagnetic wire surface and Kapton all the time at an angle of 90 and make described Kapton be in the state of continuous stressed stripping, and record the data of the pulling force suffered by Kapton measured in stripping process.
A kind of frock of the Kapton peeling force for measuring sintered electromagnetic wire, comprise: edge-on matrix framework, framework has upper plate, lower plate and connects the side plate of upper plate and lower plate, be provided with at least two columns between the upper and lower plates, there is between column first gap that the Kapton of electromagnetic wire can be allowed to pass; The plane of two column formations is parallel with side plate, has at two the second gap allowing electromagnetic wire pass between column and side plate.
The method of the Kapton peeling force for measuring sintered electromagnetic wire provided by the invention and frock, the direction of pull of electromagnetic wire surface and Kapton is made all the time at an angle of 90 by the speed and direction controlling electromagnetic wire movement, make the data of the pulling force suffered by Kapton measured be always the data of the pulling force perpendicular to electromagnetic wire surface direction, thus Kapton peel-force data more accurately can be obtained.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sintered electromagnetic wire of the embodiment of the present invention;
Fig. 2 is the process flow diagram of the method for the Kapton peeling force for measuring sintered electromagnetic wire of the embodiment of the present invention;
Fig. 3 is the schematic diagram that electromagnetic wire penetrates frock;
Fig. 4 is the schematic diagram of displacement-force curve.
Description of reference numerals:
1-matrix framework, 11-upper plate, 12-lower plate, 13-side plate, 2-column, 3-electromagnetic wire, 31-Kapton.
Embodiment
Be described in detail below in conjunction with the measuring method of accompanying drawing to the Kapton peeling force of the sintered electromagnetic wire that the embodiment of the present invention provides.
Embodiment one
The structure of typical sintered electromagnetic wire comprises from inside to outside successively: copper conductor, polyimide composite film and mylar reinforcement mica tape.Wherein, polyimide composite film is internal insulating layer, adopts wrapped or other the wrapped mode of half-stack package to be bonded on the outside surface of copper conductor; Mylar reinforcement mica tape is external insulation, adopts half-stack package or other wrapped mode to be bonded on the outside surface of polyimide composite film.
Implement the present embodiment for measure sintered electromagnetic wire the method for Kapton peeling force before, need the mylar reinforcement mica tape divesting sintered electromagnetic wire outside in advance, completely expose inner Kapton.As shown in Figure 1, it is the structural representation of the sintered electromagnetic wire of the embodiment of the present invention to the sintered electromagnetic wire divesting the mylar reinforcement mica tape of sintered electromagnetic wire outside of the present embodiment.
Fig. 2 is the process flow diagram of the method for the Kapton peeling force for measuring sintered electromagnetic wire of the embodiment of the present invention.With reference to Fig. 2, the method for the Kapton peeling force measuring sintered electromagnetic wire of the present embodiment comprises the following steps:
Step 210: the length direction along electromagnetic wire peels off the Kapton of the first predetermined length on electromagnetic wire;
Step 220: one end of the Kapton of stripping is fixed;
Step 230: control electromagnetic wire and move, Kapton is peeled off from electromagnetic wire, in the process peeled off, control the speed of electromagnetic wire movement and direction and make the direction of pull of electromagnetic wire surface and Kapton all the time at an angle of 90 and make described Kapton be in the state of continuous stressed stripping, and record the data of the pulling force (i.e. the Kapton peeling force of sintered electromagnetic wire) suffered by Kapton measured in stripping process.
The method of the Kapton peeling force for measuring sintered electromagnetic wire that the present embodiment provides, the direction of pull of electromagnetic wire surface and Kapton is made all the time at an angle of 90 by the speed controlling electromagnetic wire movement, make the data of the pulling force suffered by Kapton measured be always the data of the pulling force perpendicular to electromagnetic wire surface direction, thus Kapton peel-force data more accurately can be obtained.
Wherein, step 210 can be specially: the otch cutting two parallel predetermined the second length (being such as less than 10mm) in the polyimide film layer of electromagnetic wire along the length direction of electromagnetic wire, second length is less than the first length (such as 10mm), distance between two otch can depend on the width of electromagnetic wire, makes the both sides of electromagnetic wire Width leave certain distance (such as 0.5-1mm); One end of two otch is cut logical in the width direction, forms the free end of the Kapton of the second length; Pull free end, the Kapton of the first predetermined length is peeled off in the direction along otch on electromagnetic wire.
Further, before step 220, the method for the Kapton peeling force measuring sintered electromagnetic wire of the present embodiment can also comprise process electromagnetic wire being penetrated frock.As shown in Figure 3, Fig. 3 is the schematic diagram that electromagnetic wire penetrates frock, the structure of frock as seen in Figure 3, with reference to Fig. 3, this frock comprises edge-on matrix framework 1, framework has upper plate 11, lower plate 12 and connects the side plate 13 of upper plate 11 and lower plate 12, is provided with at least two columns 2, has first gap that the Kapton 31 of electromagnetic wire 3 can be allowed to pass between column 2 between upper plate 11 and lower plate 12; The plane of two column 2 formations is parallel with side plate 13, has the second gap allowing electromagnetic wire 3 pass between two columns 2 and side plate 13.
By above-mentioned frock, process electromagnetic wire 3 being penetrated frock can as shown in Figure 3, comprise: electromagnetic wire 3 is penetrated the second gap, by Kapton 31 through the first gap.
Further, step 220 can be: be clipped on the stationary fixture of tension tester Kapton 31 one end through the first gap.
Correspondingly, can in the process of stripping in step 230, frock is pulled to move, the moving direction of frock is made to keep with the Kapton 31 peeled off in straight line (can with reference to direction shown in the arrow of upper right side in figure 3), and control the translational speed of Mobile tool, make Kapton be in the state of continuous stressed stripping.Particularly, can by drive motor etc. automatically drive control apparatus control the movement of frock, in moving process, electromagnetic wire 3 while along with the movement of frock moving direction, also can move relative to frock in their length direction.
By the matching relationship of above-mentioned electromagnetic wire and frock, and control the translational speed of frock and direction by automatic control technology and make the direction of pull of electromagnetic wire surface and Kapton all the time at an angle of 90, thus make the operability of the method for the present embodiment stronger.Further, the step recording the data of the pulling force suffered by the Kapton measured in stripping process in step 230 can be specially: the data of the pulling force suffered by the Kapton measured by measurement mechanism in the recording device records stripping process of tension tester.Measure, record the data of pulling force by the measurement mechanism of tension tester and pen recorder, eliminate the factor of artificial subjective judgement, data accurately can be recorded to, make the measuring method of the present embodiment science, rigorous more.
Further, the measuring method of the present embodiment can also comprise at least one process of following process:
The rate of extension arranging tension tester is less than predetermined threshold value (such as 2mm/s), and threshold value can be set to the data maximum rate accurately ensureing to measure pulling force.By this setting, make the data of the pulling force measured more accurate further.
The range of tension tester is set, makes peeling force (such as 15%-85%) in the scope of the predetermined ratio of range.By this setting, the precision of measurement data can be improved further.
Further, the tension tester that the present embodiment uses can be electronic tension tester.Electronic tension tester can the data of pulling force that arrive of display measurement in real time, have further facilitated checking of measurement data.Further, tension tester can comprise the plotting unit of record peeling force automatically.Correspondingly, the data of pulling force can be displacement-force curve data, and the data processing recording the pulling force suffered by Kapton measured in stripping process in step 230 can be: use plotting unit record and draw out displacement-force curve data.Displacement-force curve data as shown in Figure 4.By automatically recording the plotting unit record of peeling force and drawing out displacement-force curve data, enable survey crew more clearly understand the variation tendency of the Kapton peeling force of sintered electromagnetic wire, thus the peeling force index of Kapton and copper conductor can be evaluated more accurately.
Embodiment two
The present embodiment relates to the frock of the Kapton peeling force for measuring sintered electromagnetic wire used in enforcement one, the concrete structure wherein worked in embodiment one composition graphs 3 be illustrated, do not repeat them here.
The frock of the Kapton peeling force for measuring sintered electromagnetic wire that the present embodiment provides, electromagnetic wire surface is enable to keep parallel with side plate 13 by least two columns 2, and make the Kapton 31 of electromagnetic wire 3 also can be fixed on stationary fixture in one end perpendicular to electromagnetic wire surface through behind the first gap by column 2 and the first gap, thus can by control frock along with the direction of the Kapton 31 peeled off in straight line move make electromagnetic wire surface and Kapton direction of pull all the time at an angle of 90, the data of the pulling force suffered by Kapton measured are made to be always the data of the pulling force perpendicular to electromagnetic wire surface direction, thus Kapton peel-force data more accurately can be obtained.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (7)
1. for measuring a method for the Kapton peeling force of sintered electromagnetic wire, it is characterized in that, described method comprises:
Length direction along described electromagnetic wire peels off the Kapton of the first predetermined length on described electromagnetic wire;
One end of the Kapton of described stripping is fixed;
Control described electromagnetic wire to move, described Kapton is peeled off from described electromagnetic wire, in the process peeled off, control the speed of described electromagnetic wire movement and direction and make the direction of pull of described electromagnetic wire surface and described Kapton all the time at an angle of 90 and make described Kapton be in the state of continuous stressed stripping, and record the data of the pulling force suffered by Kapton measured in stripping process.
2. method according to claim 1, is characterized in that, the process that the described length direction along described electromagnetic wire peels off the Kapton of the first predetermined length on described electromagnetic wire comprises:
The polyimide film layer of described electromagnetic wire is cut along the length direction of described electromagnetic wire the otch of two parallel the second predetermined length, and described second length is less than described first length;
One end of two described otch is cut logical in the width direction, forms the free end of the Kapton of described second length;
Pull described free end, the Kapton of the first predetermined length is peeled off in the direction along described otch on described electromagnetic wire.
3. method according to claim 1, it is characterized in that, also comprise the process described electromagnetic wire being penetrated frock, described frock comprises edge-on matrix framework, described framework has upper plate, lower plate and connects the side plate of upper plate and lower plate, between described upper plate and lower plate, be provided with at least two columns, there is between described column first gap that the Kapton of electromagnetic wire can be allowed to pass; The plane that described two columns are formed is parallel with described side plate, has at described two the second gap allowing described electromagnetic wire pass between column and side plate;
The process that described electromagnetic wire penetrates frock is comprised: described electromagnetic wire is penetrated described second gap, by described Kapton through described first gap, the process that one end of the Kapton of described stripping is fixing comprises: be clipped on the stationary fixture of tension tester by the Kapton one end through described first gap, in the process peeled off, described frock is pulled to move, making the moving direction of described frock keep with the Kapton peeled off is straight line, and control the translational speed of mobile described frock, described Kapton is made to be in the state of continuous stressed stripping.
4. method according to claim 3, it is characterized in that, the step of the data of the pulling force suffered by Kapton measured in described record stripping process comprises: the data of the pulling force suffered by the Kapton measured by measurement mechanism in the recording device records stripping process of tension tester.
5. method according to claim 4, is characterized in that, described method also comprises at least one process of following process:
The rate of extension arranging described tension tester is less than predetermined threshold value, and described threshold value is the data maximum rate accurately ensureing to measure described pulling force;
The range of described tension tester is set, makes peeling force in the scope of the predetermined ratio of described range.
6. method according to claim 4, it is characterized in that: described tension tester comprises the plotting unit of record peeling force automatically, the data of described pulling force comprise displacement-force curve data, and the data processing of the pulling force suffered by Kapton measured in described record stripping process comprises: use described plotting unit record and draw out displacement-force curve data.
7., for measuring a frock for the Kapton peeling force of sintered electromagnetic wire, it is characterized in that, comprise:
Edge-on matrix framework, described framework has upper plate, lower plate and connects the side plate of upper plate and lower plate, is provided with at least two columns, has first gap that the Kapton of electromagnetic wire can be allowed to pass between described column between described upper plate and lower plate;
The plane that described two columns are formed is parallel with described side plate, has at described two the second gap allowing described electromagnetic wire pass between column and side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806199.7A CN104596921A (en) | 2014-12-22 | 2014-12-22 | Method and tool for measuring polyimide film peeling force of sintered electromagnetic wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806199.7A CN104596921A (en) | 2014-12-22 | 2014-12-22 | Method and tool for measuring polyimide film peeling force of sintered electromagnetic wire |
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| CN104596921A true CN104596921A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410806199.7A Pending CN104596921A (en) | 2014-12-22 | 2014-12-22 | Method and tool for measuring polyimide film peeling force of sintered electromagnetic wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644935A (en) * | 2017-03-02 | 2017-05-10 | 天津市捷威动力工业有限公司 | Method and apparatus for measuring bonding force between graphite and binder of negative electrode of lithium battery |
| CN109297904A (en) * | 2018-11-22 | 2019-02-01 | 安工腐蚀检测实验室科技（无锡）有限公司 | A kind of experimental rig and test method for evaluating anticorrosive coating peeling intensity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06194304A (en) * | 1992-12-22 | 1994-07-15 | Sumitomo Electric Ind Ltd | Adhesion strength evaluating method for insulation coating film on insulated wire |
| CN201681038U (en) * | 2010-05-10 | 2010-12-22 | 奇瑞汽车股份有限公司 | 90-degree stripping test clamp for leather or shell fabric-wrapped hard base material composite material |
| KR20120121467A (en) * | 2011-04-27 | 2012-11-06 | 한국표준과학연구원 | Interfacial delaminating apparatus by introducing a substrate through-thickness crack |
| CN203053843U (en) * | 2012-12-29 | 2013-07-10 | 上海华碧检测技术有限公司 | Clamp for peel strength test |
-
2014
- 2014-12-22 CN CN201410806199.7A patent/CN104596921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06194304A (en) * | 1992-12-22 | 1994-07-15 | Sumitomo Electric Ind Ltd | Adhesion strength evaluating method for insulation coating film on insulated wire |
| CN201681038U (en) * | 2010-05-10 | 2010-12-22 | 奇瑞汽车股份有限公司 | 90-degree stripping test clamp for leather or shell fabric-wrapped hard base material composite material |
| KR20120121467A (en) * | 2011-04-27 | 2012-11-06 | 한국표준과학연구원 | Interfacial delaminating apparatus by introducing a substrate through-thickness crack |
| CN203053843U (en) * | 2012-12-29 | 2013-07-10 | 上海华碧检测技术有限公司 | Clamp for peel strength test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644935A (en) * | 2017-03-02 | 2017-05-10 | 天津市捷威动力工业有限公司 | Method and apparatus for measuring bonding force between graphite and binder of negative electrode of lithium battery |
| CN109297904A (en) * | 2018-11-22 | 2019-02-01 | 安工腐蚀检测实验室科技（无锡）有限公司 | A kind of experimental rig and test method for evaluating anticorrosive coating peeling intensity |
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Application publication date: 20150506 |
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